Public Water Systems
3,967 active public water systems in IN, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| Wolfes Leisure Time Campground, Inc. | Lafayette, IN | 78 | 55 | - |
| Bethel Baptist Church | Columbus, IN | 77 | 107 | - |
| American Petroleum, Inc. (Marathon) | Middlebury, IN | 77 | 100 | - |
| Sports Lake | Fort Wayne, IN | 77 | 133 | - |
| Amity Baptist Church | Franklin, IN | 77 | 47 | - |
| G & G Hauling & Excavating | Warsaw, IN | 77 | 22 | - |
| Hill Lake Resort | Mesa, IN | 77 | 74 | - |
| Hunleys Restaurant | Cedar Lake, IN | 77 | 229 | - |
| Lake Village Presbyterian Church | Lake Village, IN | 77 | 19 | - |
| Ligonier Christian Church | Ligonier, IN | 77 | 59 | - |
| Trinity Assembly of God | Ligonier, IN | 77 | 43 | - |
| Shady Haven Resort | Albion, IN | 77 | 59 | - |
| Waterman Baptist Church | Kingman, IN | 77 | 48 | - |
| Pleasant Hill Church | Union City, IN | 77 | 70 | - |
| Oc Bowling Lanes | Osceola, IN | 77 | 94 | - |
| Michiana Community Church of God | Granger, IN | 77 | 24 | - |
| Kps Korner | Knox, IN | 77 | 130 | - |
| Lake Area Christian Church | Fremont, IN | 77 | 49 | - |
| Arcola Inn and Ale | Arcola, IN | 76 | 5 | - |
| First United Church of Christ | Lewis, IN | 76 | 50 | - |
| Thomas Funeral Home | Garrett, IN | 76 | 14 | - |
| Chippendale Golf Course | Kokomo, IN | 76 | 99 | - |
| Country Bible Church | Leesburg, IN | 76 | 18 | - |
| Pier 343 Homeowners Association, Inc. | Syracuse, IN | 76 | 23 | - |
| Fish Lake Family Resort | Fremont, IN | 76 | 40 | - |
| Forest Ridge Campground | Fort Wayne, IN | 76 | 29 | - |
| Edgerton Wesleyan Church | Woodburn, IN | 75 | 8 | - |
| Prince of Peace Lutheran Church | Grabill, IN | 75 | 60 | - |
| Chapel of the Good Shepherd | Hope, IN | 75 | 37 | - |
| The Highway Hangout | Monticello, IN | 75 | 14 | - |
| Andersons Clymers Terminal | Logansport, IN | 75 | 22 | - |
| The Crossing - Frankfort | Frankfort, IN | 75 | 106 | - |
| Comunidad Cristiana Adulam | Goshen, IN | 75 | 399 | - |
| Rock Run Youth | Millersburg, IN | 75 | 135 | - |
| Wakarusa Produce Auction | Goshen, IN | 75 | 26 | - |
| Holdeman Mennonite Church | Wakarusa, IN | 75 | 52 | - |
| Nappanee Raceway | Middlebury, IN | 75 | 64 | - |
| Turtle Top (Plant #2) | New Paris, IN | 75 | 87 | - |
| Elkhart Campground | Elkhart, IN | 75 | 46 | - |
| Bear Slide Golf Club | Cicero, IN | 75 | 42 | - |
| Greenfield Conservation Club-Bingo Hall | Greenfield, IN | 75 | 109 | - |
| Willow Branch United Methodist Church | Wilkinson, IN | 75 | 58 | - |
| Grace Baptist Church | Greenfied, IN | 75 | 28 | - |
| Christ Presbyterian Church | McCordsville, IN | 75 | 30 | - |
| Fairfield Friends Meeting | Mooresville, IN | 75 | 27 | - |
| Twin Bridges Rdf - Lodge | Danville, IN | 75 | 0 | - |
| Block & Brew | Knightstown, IN | 75 | 51 | - |
| Fair Havens Alliance | Kokomo, IN | 75 | 3 | - |
| Kokomo Zion Church, Inc | Kokomo, IN | 75 | 89 | - |
| Little Creek Campground | Rensselaer, IN | 75 | 52 | - |